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Dr. Erin Arnold completed her oncology residency at Purdue University and became board-certified in medical oncology in 2011. She obtained her doctorate of veterinary medicine from North Carolina State University. After earning her bachelor's degree in microbiology from Colorado State University, she strived to return to Colorado's mountains and outdoor beauty. She has been practicing in the Denver and Colorado Springs area ever since and is very happy to be joining VSR in her hometown of Castle Rock.

Dr. Arnold's care focuses on a multi-modal approach which may incorporate some combination of chemotherapy, molecular targeted therapies, immunotherapy, electrochemotherapy, and supportive care for cancer patients. Her professional interests include electrochemotherapy treatment for tumors of the face and mouth and treatment strategies to improve survival times for cancers such as lymphoma, histiocytic sarcoma, and transitional cell carcinoma of the urinary bladder. Dr. Arnold strives to provide high-quality medical care for animals while offering emotional support for families.